Feifei Sun

Feifei Sun joined TIME in 2010 and is the editor of TIME's Style&Design vertical. She also reports on fashion and culture for TIME and TIME.com, and works on the magazine's special issues, including Person of the Year and TIME 100, and the photography blog LightBox. Previously, Sun worked at Vanity Fair, where she wrote about photography and served as an assistant editor on the magazine's hardcover books.

Sure, kissing feels good. But it’s also an evolutionary advantage. Now a new book explains the science behind passionate lip-locks, and what they tell us about how men and women approach romantic relationships.